The central worship service of the Orthodox Church, celebrating the Eucharist (Holy Communion). Usually celebrated on Sundays and feast days, the Divine Liturgy consists of the Liturgy of the Word (scripture readings) and Liturgy of the Faithful (Eucharistic prayer and communion). The most common forms are the Liturgies of St. John Chrysostom and St. Basil the Great.

The midpoint between Pascha and Pentecost, celebrated on the Wednesday of the fourth week after Pascha. This feast commemorates Christ teaching in the Temple during the Feast of Tabernacles, offering "living water" to those who believe. The day connects Christ's Resurrection with the coming gift of the Holy Spirit, emphasizing continuous spiritual refreshment.

The soldier-saint martyred under Diocletian, venerated as the 'Trophy-Bearer' for his victory over evil. Celebrated on April 23rd, George is patron of soldiers, England, and Georgia. The legend of his slaying a dragon symbolizes triumph over evil. His courage in maintaining faith despite torture makes him a model of Christian fortitude.

The evangelist who wrote the shortest Gospel, emphasizing Christ's divine power through miracles. Celebrated on April 25th, Mark was a companion of both Peter and Paul. He founded the Church in Alexandria and is patron of Venice. His Gospel, likely the first written, served as a source for Matthew and Luke.

The evening prayer service of the Orthodox Church, traditionally celebrated at sunset. Vespers includes psalms, hymns, scripture readings, and incense. On Saturday evenings, Great Vespers is often combined with the Sunday Divine Liturgy. The service marks the end of the liturgical day and prepares the faithful for rest and reflection.